Vehicle-spring.



TA B, NKINS.

VEHICLE SPRING.

APPUCAHQN meu Nov. 24. m5.

1,180,043. Fammi Apr. 18,1916.

@Hoznuq VEHCLE-PRNG.

Application tiled November 211, 1915.

having grooves whereby lubricant mayv be :applied to the various layers of the spring.

A further object is to provide a bolt of such a form that it may bev readil)T used in any standard spring, no special arranffenient or construction of the spring' leaves being necessary);

1n the accomiianyingl drawings, Figure 1 is a side view part in section, of a spring embodying my invention. Fig. 2 is a bolt, as shown at Fig, 1. Fig, 3 a sectional View of the bolt shown at Fig. 2, and Fig. fl, an alternate form of bolt.

Like igures of reference denote the same parts wherever theyY are shown.

1. denotes the usual spring perch which may be integral with the vehicle axle 2, or it may be attached thereto.

r he spring proper consists of the leaves. 3, 4, 5 'and G, which are clamped to the perch by means of the ordinary spring clips, 7 and 8. The bolt 9 passing through the center of the springr leaves. clamps them together, when nut 10 is in place. In 9 is drilled a hole 11, connecting'livith the lateral apertures, 12 and 13, which coinn'iunicate with the outer spiral groove 1l in the top of the bolt is screwed ay grease cup 15, the vent of which communicates with the center hole 11. It will now be seen that oil or grease from the cup 15 will pass down the opening 11 and issue from the vents 12 and 15 into the groove 14, and from said groove will work into and between the various layers ofthe spring, thereby lubricating the same.

Specication of Letters Patent.

.Patented l'.

Serial Ne, 63,217.

An alternate form of bolt is shown 1, having two longitudinal roei y which is shown at 1G. These grooves made on the outside of the bolt. cup l5 has a female thread as show serves to clamp the holt in place. dispensing with the nut 10, which wise used. 1n this arrangement the not weakened by the center hole 11.

It will be obvious from the foregoing scription that the necessity for spring of any special construfzion l'rving; nl; Y or other means registrare.ar with the vents in the bolt is elimini as 1 li d t the grease readil)7 penetrates between li layers of the spring, when the saaie is of the ordinary and` well known construction, and itV will also be observed that the special bolt constituting my. invention, ma)Y be an plied to the ordinary type of springs non' in use..

Havingthus described my inventirai.y claim:

l. In a vehicle spring, a` hollevv bolt, hav-- ing` one or more lateral apertures, an oil groove on the outer surface of said holt een-- necting said apertures, and means for supplying a lubricant to said bolt subastawlziallj.` as described.

2. A vehicle spring comprising,r a p of flat lea ves, having plain surfaces, a bolt securing said leaves together, and hav ing an internal oil duct and an esterna groove and havii'xj; means tor clamer said groeve and duct, and inea s' plying lubricant to said duct, si as described.

A vehicle spring,r comprisinn#v nl rality of Hat leaves, a center holt securing said leaves together, and having' an internal oil duct and an external oil groove. having means for connectingr said groove and duct, and means for supplying hibricant to said duct, substantially asilesrrilfefi..

ln testimony whereof l l` reunto atlix my signature.

THOMAS BRACICY JEAYIS. 

